A primary key is an essential aspect of any relational database management system. A primary key is a unique identifier that is assigned to each record within a database table. The purpose of a ...

When you create a Microsoft Access table, Access will automatically create a primary key to your database table. Still, you can also specify the field you want as the primary key for your database ...

A primary key is a field used to uniquely identify every record in the database. Sometime primary keys are obvious, for example a car license plate could be used to uniquely identify cars. Often, ...

「データ入力→台帳管理→様式印刷（連続印刷・PDF出力）の機能を持ったツール」を作成するためのツールです。 管理が必要な「項目名」のリストを作成し「ツール新規作成」ボタンを押下 ...